OneZero — The Most Compact Reverse Osmosis System for Any Boat

Pure Water. Zero Electricity. Zero Compromise.

French Eaux brings innovation and sustainability to life at sea with OneZero, the most compact reverse osmosis unit designed for any boat. Engineered for maritime environments, OneZero delivers pure, refreshing water instantly — producing up to 3 liters every 10 minutes at just 3.5 bars of pressure, with no electricity, no noise, and no maintenance hassle.

Thanks to its dual-membrane osmosis system and integrated pre- and post-filtration, OneZero eliminates 99.9% of germs, viruses, chemicals, endocrine disruptors, PFAS, and microplastics. The result is clean, safe, and great-tasting water — directly from your onboard tap.

Key Specifications
- Instant flow rate: 3 L / 10 min (≈ 18 L/h)
- Operating pressure: 1.5 – 6 bars
- Operating temperature: 5°C – 35°C
- Filter capacity: 7,000 liters
- Dimensions: L 360 × W 360 × H 150 mm
- Noise level: 0 dB — operates without pumps or motors
- Maintenance: Filter cartridge replacement every 12 months
- Smart LED indicator for filter status and battery

Compact and flexible, OneZero can be installed vertically or horizontally, making it ideal for any galley or technical compartment.

Designed to pair seamlessly with French Eaux’s Oceane fountain — offering sparkling, chilled, and ambient water — or with the U4 and U5 taps, which integrate elegantly into any countertop (the U5 also provides instant hot water), OneZero transforms the way crews and guests experience hydration on board.

With over 15 years of expertise, French Eaux provides marine-grade water filtration systems trusted by captains, crews, and owners worldwide, and installed on renowned brands such as Nautitech, Lagoon, Excess, Fountaine Pajot, Neel, and more.

By choosing OneZero, you ensure self-sufficiency, sustainability, and superior comfort, while saying goodbye to single-use plastic bottles forever.

Meet us at METS Amsterdam — 18–20 November 2025 | RAI Amsterdam
Discover the U5 Tap and explore our full range of onboard filtration and dispensing solutions from French Eaux.